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Green circuit board with silver bracket and two QSFP cages

Mellanox Technologies

Mellanox Technologies MHQH29B-XTR 40Gbps Dual QSFP PCIe 2.0 x8 network card

SKU CH-JGQK-MVBFQ MPN MHQH29B-XTR

Delivers 40Gbps dual-QSFP connectivity over PCIe 2.0 x8 with VPI, RDMA and GPU-accelerated offloads

  • Speed40Gbps
  • Connectors2 x QSFP
  • InterfacePCI-Express 2.0 x8
  • FeaturesVPI Hardware-based Transport and Application Offloads RDMA G
  • 40 Gbps throughput for high-speed data transfer
  • Dual QSFP ports enable flexible fibre or copper uplinks
  • PCIe 2.0 x8 interface fits standard server slots
  • VPI technology supports both Ethernet and InfiniBand fabrics
  • Hardware offloads reduce CPU load for transport and application tasks

40Gbps Dual QSFP Adapter

The Mellanox MHQH29B-XTR is a PCIe 2.0 x8 network card delivering 40Gbps through two QSFP ports. It uses the ConnectX-2 VPI engine to provide hardware offloads for transport, RDMA and GPU communication. The adapter supports I/O virtualisation, QoS and IP stateless offload. It is built for high-throughput server and cluster workloads.

Suited for dual-port 40GbE or InfiniBand links

This card fits servers that need two 40Gbps connections over QSFP cables or transceivers and can use PCIe 2.0 x8 slots. It is not for systems that only have PCIe 3.0 or newer slots without a compatible riser. Buyers who need single-port connectivity or lower speeds should look at other models. Environments requiring different connector types are also not addressed.

PCIe 2.0 x8 interface determines slot compatibility

The card installs in a PCIe 2.0 x8 slot and negotiates at that generation and width. Bandwidth scales with the slot capability provided by the host platform. Verify that the target server exposes a matching slot before purchase. No other specification overrides this requirement.

Highlights

  • 40 Gbps throughput for high-speed data transfer
  • Dual QSFP ports enable flexible fibre or copper uplinks
  • PCIe 2.0 x8 interface fits standard server slots
  • VPI technology supports both Ethernet and InfiniBand fabrics
  • Hardware offloads reduce CPU load for transport and application tasks

Specifications

BrandMellanox
ModelMHQH29B-XTR
Speed40Gbps
Connectors2 x QSFP
InterfacePCI-Express 2.0 x8
FeaturesVPI
Hardware-based Transport and Application Offloads
RDMA
GPU Communication Acceleration
I/O Virtualization
QoS and Congestion Control
IP Stateless Offload
Shipping weight0.24 kg
Package size222 × 178 × 53 mm

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